body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 50px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #333;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
    margin-top: 30px;
}

form {
    margin-bottom: 20px;
}

input[type="text"],
textarea,
input[type="date"] {
    width: 100%;
    padding: 10px;
    margin: 5px 0 15px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="submit"] {
    padding: 10px 20px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin-right: 10px;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}

.topic-item {
    border: 1px solid #eee;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.topic-item p {
    margin: 5px 0;
}